Advanced Materials · 2000 · 167 citations · 0 references
Natural SciencesChemistryMaterials ScienceCondensed Matter PhysicsNanomaterialsNanotechnologyColloid ChemistryColloidal Self-assemblyNanomaterials SynthesisNanoparticle SynthesisSelf-assembled NanostructuresSelf-assembly Of NanomaterialsBright-field ImagingBright-field MicroscopyColloidal NanoparticlesColloidal SuperlatticesNanoparticle Self-assemblyNoble Metal NanoclustersOrdered Colloidal ArraysThiol Functionalization
Colloidal alloy superlattices of two different nanoclusters are demonstrated here for the first time. Thiol-functionalized Ag and Au nanoclusters were prepared separately in toluene before mixing and solvent evaporation. For certain Au/Ag proportions, the particles spontaneously self-organized into ordered 2D arrays, which can be seen in the bright field STEM image in the Figure.